Sigma has provided a firmware update for their Canon EF and Sigma mount to Sony E mount adapter.
※1 To see the list of compatible lenses, please refer the following page.
※2 Please use SIGMA Optimization Pro Version 1.3 when updating the firmware of SIGMA MOUNT CONVERTER MC-11.
SIGMA Optimization Pro Download page: http://www.sigma-global.com/download/
・ SIGMA MOUNT CONVERTER MC-11 EF-E
・ SIGMA MOUNT CONVERTER MC-11 SA-E
[Benefit of this firmware update]
It has improved the following phenomenon that occurs when lenses that are not compatible with the MC-11 are attached and no light is emitted on the MC-11’s LED lamp.
･ It does not operate properly on continuous shooting mode.
･ In the case of some lenses that incorporate an OS function, when the camera’s power is turned off, it does not respond to any operation for a certain period of time.
･ When open aperture is not selected for shooting, the aperture does not return to fully open.
※ Improvements may not be visible with some products.
※ The phenomenon that the diaphragm closes when the camera’s power is turned off is due to the characteristic of the camera and is considered to specification.
[Lenses that are not compatible with the MC-11]
We will continue to consider ensuring stable operation of lenses that are not compatible with the MC-11. Therefore customers who are using the MC-11 can enjoy photography as much as possible with their own lenses even though there may be some restrictions. However, please note that due to the characteristics of the products, accurate operation, including AF, is not guaranteed with lenses that are not compatible with the MC-11.